The Control Glucose test strips are designed only to be used with the Control blood Glucose monitoring system. These strips are comfortable, easy to use and easy to handle for people of all ages. They feature unique capillary action, which automatically absorbs blood droplets into the strip. These strips also offer the ability to be used with alternate testing sites such as your forearm, thigh, calf, palm and fingers. The great thing about these strips is that they only require small 1 ul blood sample sizes. This makes the process less painful and eliminates the need for retesting. The Control Gluose test strips for testing blood sugar levels on diabetic patients come in a box of 50 and are for in-vitro diagnostic use only.